At full muscle contraction the Z-lines attached to thin filaments are almost touching

During muscle contraction Z-lines get closer.

What happens to the l band and H zone during contraction? Do the lengths of the thick and thin filaments change ?

Assertion: Mechanism of muscle contraction is expalained by sliding-filaments theory. Reason: Contraction of muscle fibre takes place by the sliding of thick filaments over the thin filaments.

Assertion: Mechanism of muscle contraction is expalained by sliding-filaments theory. Reason: Contraction of muscle fibre takes place by the sliding of thick filaments over the thin filaments.

Assertion: Mechanism of muscle contraction is expalained by sliding-filaments theory. Reason: Contraction of muscle fibre takes place by the sliding of thick filaments over the thin filaments.

According to sliding filament theory of muscle contraction, the filament that move to shorten a muscle are

According to sliding filament theory of muscle contraction, the filament that move to shorten a muscle are

According to sliding filament theory of muscle contraction, the filament that move to shorten a muscle are

In which category of muscle of muscle contraction the filament that move to shorten a muscle are